Turnover benefits from downhill running?

Headed to a closed portion of the Blue Ridge Parkway this morning for a little 1:00 hard / 1:00 easy for 30 minutes up a 5%-6% grade. My 1h/1e is actually 200 strides hard and 1 minute very easy for 30 minutes. I manage to do the 15 reps of 200 strides in :59-:61. I prefer this so that I'm sure to get in the turnover that I need in this type of work. I try for the 200 no matter what grade I'm doing the workout on. A favorite thing of mine is when a session like this is finished I feel like I can just float back down the hill at a very moderate effort, it's a great, relaxing cooldown. Today though I noticed that my turnover on the way down was very consistant at about 188 strides per minute. Although my HR was down in the 120's I realised that I was probably benefitting from the more rapid turnover on an actual cooldown. I'm not sure, but I think even though there's not a typical 188 stride turnover EFFORT going on, there must be a benefit to the muscle memory???? So I spent 15 minutes at a rate of 200 strides per minute, then another 22 minutes at about 188 on the way down. A perfect morning for the arm sleeves I won a few weeks ago, loads of sun, no wind and temps in the 40's.